US President Barack Obama (R) and German Chancellor Angela Merkel attend the official opening ceremony of the Hanover industry Fair at the Hannover Congress Center HCC in Hanover, on April 24, 2016. USA is partner country of the industrial fair Hannover Messe 2016 running from April 25 to April 29.  / AFP PHOTO / RONNY HARTMANNRONNY HARTMANN/AFP/Getty Images Photo: RONNY HARTMANN / AFP
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